Long-term effects of clear-cutting and selective cutting on soil methane fluxes in a temperate spruce forest in southern Germany

Wu, Xing; Brüggemann, Nicolas; Gasché, Rainer; Papen, H.; Willibald, Georg; Butterbach‐Bahl, Klaus

doi:10.1016/j.envpol.2011.06.025

Cited by 44 publications

(29 citation statements)

References 49 publications

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“…As it was verified that orchards had been established for many years in subtropical, China consumed atmospheric CH 4 at much higher rates because of less soil disturbance (Iqbal et al 2009). Similarly, in a temperate spruce forest, Wu et al (2011) found that the reduced soil CH 4 oxidation capacity due to land use conversion could last for a decade or even longer. Thus, long-term continuous measurements over several years are needed to understand the dynamics of GHG fluxes during different stages after land use conversion.…”

Section: Discussionmentioning

confidence: 93%

Effects of land use conversion and fertilization on CH4 and N2O fluxes from typical hilly red soil

Liu

et al. 2016

Environ Sci Pollut Res

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Land use conversion and fertilization have been widely reported to be important managements affecting the exchanges of greenhouse gases between soil and atmosphere. For comprehensive assessment of methane (CH 4 ) and nitrous oxide (N 2 O) fluxes from hilly red soil induced by land use conversion and fertilization, a 14-month continuous field measurement was conducted on the newly converted citrus orchard plots with fertilization (OF) and without fertilization (ONF) and the conventional paddy plots with fertilization (PF) and without fertilization (PNF). Our results showed that land use conversion from paddy to orchard reduced the CH 4 fluxes at the expense of increasing the N 2 O fluxes. Furthermore, fertilization significantly decreased the CH 4 fluxes from paddy soils in the second stage after conversion, but it failed to affect the CH 4 fluxes from orchard soils, whereas fertilizer applied to orchard and paddy increased soil N 2 O emissions by 68 and 113.9 %, respectively. Thus, cumulative CH 4 emissions from the OF were 100 % lower, and N 2 O emissions were 421 % higher than those from the PF. Although cumulative N 2 O emissions were stimulated in the newly converted orchard, the strong reduction of CH 4 led to lower global warming potentials (GWPs) as compared to the paddy. Besides, fertilization in orchard increased GWPs but decreased GWPs of paddy soils. In addition, measurement of soil moisture, temperature, dissolved carbon contents (DOCs), and ammonia (NH 4 + -N) and nitrate (NO 3 − -N) contents indicated a significant variation in soil properties and contributed to variations in soil CH 4 and N 2 O fluxes. Results of this study suggest that land use conversion from paddy to orchard would benefit for reconciling greenhouse gas mitigation and citrus orchard cultivation would be a better agricultural system in the hilly red soils in terms of greenhouse gas emission. Moreover, selected fertilizer rate applied to paddy would lead to lower GWPs of CH 4 and N 2 O. Nevertheless, more field measurements from newly converted orchard are highly needed to gain an insight into national and global accounting of CH 4 and N 2 O emissions.

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Section: Discussionmentioning

confidence: 93%

Effects of land use conversion and fertilization on CH4 and N2O fluxes from typical hilly red soil

Liu

et al. 2016

Environ Sci Pollut Res

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“…An incubation study with soils from various land use types by Wu et al (2010a) revealed that soils consumed much less or even emitted CH 4 during freezing. In addition to affecting microbial activity (Ding and Cai 2007), soil freezing may also limit the transport of gases by creating diffusion barriers (Borken et al 2006;Wu et al 2011). The enhanced CH 4 consumption during thawing might be partly ascribed to increased methanotrophy and reduced methanogenesis at low temperatures (Ding and Cai 2007).…”

Section: Discussionmentioning

confidence: 99%

Snow cover and soil moisture controls of freeze–thaw-related soil gas fluxes from a typical semi-arid grassland soil: a laboratory experiment

Brüggemann

Butterbach‐Bahl

et al. 2013

Biol Fertil Soils

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In situ field measurements as well as targeted laboratory studies have shown that freeze-thaw cycles (FTCs) affect soil trace gas fluxes. However, most of past laboratory studies adjusted soil moisture before soil freezing, thereby neglecting that snow cover or water from melting snow may modify effects of FTCs on soil trace gas fluxes. In the present laboratory study with a typical semi-arid grassland soil, three different soil moisture levels (32 %, 41 %, and 50 % WFPS) were established (a) prior to soil freezing or (b) by adding fresh snow to the soil surface after freezing to simulate field conditions and the effect of the melting snow on CO 2 , CH 4 , and N 2 O fluxes during FTCs more realistically. Our results showed that adjusting soil moisture by watering before soil freezing resulted in significantly different cumulative fluxes of CH 4 , CO 2 , and N 2 O throughout three FTCs as compared to the snow cover treatment, especially at a relatively high soil moisture level of 50 % WFPS. An increase of N 2 O emissions was observed during thawing for both treatments. However, in the watering treatment, this increase was highest in the first thawing cycle and decreased in successive cycles, while in the snow cover treatment, a repetition of the FTCs resulted in a further increase of N 2 O emissions. These differences might be partly due to the different soil water dynamics during FTCs in the two treatments. CO 2 emissions were a function of soil moisture, with emissions being largest at 50 % WFPS and smallest at 32 % WFPS. The largest N 2 O emissions were observed at WFPS values around 50 %, whereas there were only small or negligible N 2 O emissions from soil with relatively low soil water content, which indicates that a threshold value of soil moisture might exist that triggers N 2 O peaks during thawing.

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“…Another study in a temperate forest actually showed an increased CH 4 uptake after thinning, as opposed to a decrease at two adjacent clear-cut areas (Bradford et al, 2000). Some studies found no significant changes in CH 4 exchange after thinning (Wu et al, 2011;Sullivan et al, 2008).…”

Section: E Sundqvist Et Al: Short-term Effects Of Thinning Clear-cmentioning

confidence: 99%

“…However, several studies reported that clear-cutting led to reduced CH 4 uptake, possibly due to increased soil moisture (Wu et al, 2011), increased nitrogen availability (Steudler et al, 1991;Bradford et al, 2000), changes in pH (Bradford et al, 2000) and erosion (Kagotani et al, 2001). A shift from soil CH 4 sink to soil CH 4 source has been reported due to a rise in water table depth combined with increases in substrate availability (Zerva and Mencuccini, 2005) and due to increases in soil moisture (Castro et al, 2000).…”

Section: E Sundqvist Et Al: Short-term Effects Of Thinning Clear-cmentioning

confidence: 99%

Short-term effects of thinning, clear-cutting and stump harvesting on methane exchange in a boreal forest

et al. 2014

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Abstract. Forest management practices can alter soil conditions, affecting the consumption and production processes that control soil methane (CH 4 ) exchange. We studied the short-term effects of thinning, clear-cutting and stump harvesting on the CH 4 exchange between soil and atmosphere at a boreal forest site in central Sweden, using an undisturbed plot as the control. Chambers in combination with a highprecision laser gas analyser were used for continuous measurements. Both the undisturbed plot and the thinned plot were net sinks of CH 4 , whereas the clear-cut plot and the stump harvested plot were net CH 4 sources. The CH 4 uptake at the thinned plot was reduced in comparison to the undisturbed plot. The shift from sink to source at the clear-cut and stump harvested plots was probably due to a rise in the water table and an increase in soil moisture, leading to lower gas diffusivity and more reduced conditions, which favour CH 4 production by archea. Reduced evapotranspiration after harvesting leads to wetter soils, decreased CH 4 consumption and increased CH 4 production, and should be accounted for in the CH 4 budget of managed forests.

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Long-term effects of clear-cutting and selective cutting on soil methane fluxes in a temperate spruce forest in southern Germany

Cited by 44 publications

References 49 publications

Effects of land use conversion and fertilization on CH4 and N2O fluxes from typical hilly red soil

Effects of land use conversion and fertilization on CH4 and N2O fluxes from typical hilly red soil

Snow cover and soil moisture controls of freeze–thaw-related soil gas fluxes from a typical semi-arid grassland soil: a laboratory experiment

Short-term effects of thinning, clear-cutting and stump harvesting on methane exchange in a boreal forest

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